CZ278300B6 - Pressure-tight joint of metal tubes - Google Patents
Pressure-tight joint of metal tubes Download PDFInfo
- Publication number
- CZ278300B6 CZ278300B6 CS895547A CS554789A CZ278300B6 CZ 278300 B6 CZ278300 B6 CZ 278300B6 CS 895547 A CS895547 A CS 895547A CS 554789 A CS554789 A CS 554789A CZ 278300 B6 CZ278300 B6 CZ 278300B6
- Authority
- CZ
- Czechia
- Prior art keywords
- sealing
- threads
- contact
- outer element
- joint
- Prior art date
Links
- 239000002184 metal Substances 0.000 title claims abstract description 26
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 26
- 239000012530 fluid Substances 0.000 claims abstract description 10
- 230000003993 interaction Effects 0.000 claims abstract description 6
- 238000005086 pumping Methods 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 45
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 229910052720 vanadium Inorganic materials 0.000 claims description 3
- NKJOXAZJBOMXID-UHFFFAOYSA-N 1,1'-Oxybisoctane Chemical compound CCCCCCCCOCCCCCCCC NKJOXAZJBOMXID-UHFFFAOYSA-N 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 229910000734 martensite Inorganic materials 0.000 claims description 2
- 150000002739 metals Chemical class 0.000 claims description 2
- 229910052758 niobium Inorganic materials 0.000 claims description 2
- 239000010970 precious metal Substances 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 229910052719 titanium Inorganic materials 0.000 claims description 2
- 238000011282 treatment Methods 0.000 claims description 2
- 229910000851 Alloy steel Inorganic materials 0.000 claims 1
- 230000000573 anti-seizure effect Effects 0.000 claims 1
- 238000002513 implantation Methods 0.000 claims 1
- 230000035882 stress Effects 0.000 description 8
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000005489 elastic deformation Effects 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000003518 caustics Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006353 environmental stress Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009957 hemming Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
- F16L15/02—Screw-threaded joints; Forms of screw-threads for such joints allowing substantial longitudinal adjustment by use of a long screw-threaded part
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
- F16L15/001—Screw-threaded joints; Forms of screw-threads for such joints with conical threads
- F16L15/004—Screw-threaded joints; Forms of screw-threads for such joints with conical threads with axial sealings having at least one plastically deformable sealing surface
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/042—Threaded
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Gasket Seals (AREA)
- Joints With Pressure Members (AREA)
- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
- Earth Drilling (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
- Heat Treatment Of Articles (AREA)
- Joints With Sleeves (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT8848411A IT1224745B (it) | 1988-10-03 | 1988-10-03 | Giunto a tenuta ermetica metallica per tubi |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CS8905547A2 CS8905547A2 (en) | 1991-09-15 |
| CZ278300B6 true CZ278300B6 (en) | 1993-11-17 |
Family
ID=11266388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS895547A CZ278300B6 (en) | 1988-10-03 | 1989-09-29 | Pressure-tight joint of metal tubes |
Country Status (25)
| Country | Link |
|---|---|
| US (1) | US4958862A (es) |
| EP (1) | EP0364413B1 (es) |
| JP (1) | JP3062820B2 (es) |
| KR (1) | KR950000608B1 (es) |
| CN (1) | CN1015198B (es) |
| AR (1) | AR248447A1 (es) |
| AT (1) | ATE124769T1 (es) |
| BR (1) | BR8905142A (es) |
| CA (1) | CA1321808C (es) |
| CZ (1) | CZ278300B6 (es) |
| DD (1) | DD284955A5 (es) |
| DE (3) | DE68923338T2 (es) |
| ES (1) | ES2014954T3 (es) |
| GR (1) | GR3017605T3 (es) |
| HK (1) | HK1005320A1 (es) |
| HR (1) | HRP940489B1 (es) |
| IT (1) | IT1224745B (es) |
| MX (1) | MX174243B (es) |
| MY (1) | MY104226A (es) |
| NO (1) | NO301852B1 (es) |
| OA (1) | OA09097A (es) |
| RO (1) | RO113763B1 (es) |
| RU (1) | RU2058505C1 (es) |
| SK (1) | SK278341B6 (es) |
| YU (1) | YU47908B (es) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CZ302148B6 (cs) * | 2000-06-20 | 2010-11-18 | Vallourec Mannesmann Oil & Gas France | Trubkový závitový spoj |
Families Citing this family (69)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5338074A (en) * | 1989-03-02 | 1994-08-16 | The Hydril Company | Threaded pipe connection |
| US5415442A (en) * | 1992-03-09 | 1995-05-16 | Marubeni Tubulars, Inc. | Stabilized center-shoulder-sealed tubular connection |
| US5848813A (en) * | 1993-10-21 | 1998-12-15 | Albrecht; David E. | Threaded port for fluid flow connection |
| FR2725773B1 (fr) * | 1994-10-13 | 1996-11-29 | Vallourec Oil & Gas | Assemblage filete pour tubes |
| EP1387036B1 (en) * | 1994-10-19 | 2007-04-18 | Sumitomo Metal Industries, Ltd | Thread joint for tube |
| WO1998054501A1 (en) * | 1997-05-30 | 1998-12-03 | Sumitomo Metal Industries, Ltd. | Screw joint for oil well pipe |
| US6322110B1 (en) | 1997-08-11 | 2001-11-27 | Marubeni Tubulars, Inc. | Tubular connection |
| EP0949441A4 (en) * | 1997-10-08 | 2006-09-06 | Sumitomo Metal Ind | SCREW CONNECTION FOR OIL PIPES AND METHOD FOR THE PRODUCTION THEREOF |
| GB2358228B (en) * | 2000-01-13 | 2002-11-06 | Ian Harold Hignett | Improvements to pipe joints |
| IT1318179B1 (it) * | 2000-07-17 | 2003-07-23 | Dalmine Spa | Giunzione filettata integrale per tubi. |
| IT1318753B1 (it) * | 2000-08-09 | 2003-09-10 | Dalmine Spa | Giunzione filettata integrale a profilo continuo pr tubi |
| US6811189B1 (en) * | 2000-10-04 | 2004-11-02 | Grant Prideco, L.P. | Corrosion seal for threaded connections |
| JP3876656B2 (ja) * | 2001-07-13 | 2007-02-07 | 住友金属工業株式会社 | 管用ねじ継手 |
| SE524155C2 (sv) * | 2002-05-22 | 2004-07-06 | Atlas Copco Secoroc Ab | Gängförband för borrsträng för slående bergborrning |
| US6971685B2 (en) * | 2002-06-24 | 2005-12-06 | Weatherford/Lamb, Inc. | Multi-point high pressure seal for expandable tubular connections |
| ITRM20020445A1 (it) * | 2002-09-06 | 2004-03-07 | Tenaris Connections Bv | Giunzione filettata per tubi. |
| GB0227603D0 (en) * | 2002-11-27 | 2002-12-31 | Hsc S A L | Improved casino joints |
| JP4691904B2 (ja) * | 2004-03-26 | 2011-06-01 | Ｊｆｅスチール株式会社 | 油井鋼管用継手 |
| US8177262B2 (en) * | 2005-07-28 | 2012-05-15 | Hydril Company Lp | Mid-seal for expandable connections |
| FR2889727B1 (fr) * | 2005-08-09 | 2007-09-28 | Vallourec Mannesmann Oil Gas F | Joint filete tubulaire etanche aux liquides et aux gaz |
| US7798536B2 (en) * | 2005-08-11 | 2010-09-21 | Weatherford/Lamb, Inc. | Reverse sliding seal for expandable tubular connections |
| RU2338866C1 (ru) * | 2007-02-15 | 2008-11-20 | Общество С Ограниченной Ответственностью "Тмк-Премиум Сервис" | Герметичное резьбовое соединение нефтепромысловых труб |
| JP5250990B2 (ja) * | 2007-03-28 | 2013-07-31 | 新日鐵住金株式会社 | 油井管用ねじ継手 |
| EP2006589B1 (en) | 2007-06-22 | 2011-08-31 | Tenaris Connections Aktiengesellschaft | Threaded joint with energizable seal |
| DE602007011046D1 (de) | 2007-06-27 | 2011-01-20 | Tenaris Connections Ag | Gewindeverbindung mit unter Druck setzbarer Dichtung |
| EP2017507B1 (en) * | 2007-07-16 | 2016-06-01 | Tenaris Connections Limited | Threaded joint with resilient seal ring |
| EP2028402B1 (en) * | 2007-08-24 | 2010-09-01 | Tenaris Connections Aktiengesellschaft | Method for improving fatigue resistance of a threaded joint |
| EP2028403B1 (en) | 2007-08-24 | 2011-04-13 | Tenaris Connections Aktiengesellschaft | Threaded joint with high radial loads and differentially treated surfaces |
| WO2009093929A1 (ru) * | 2008-01-25 | 2009-07-30 | Obshhestvo S Ogranichennoj Otvetstvennost'ju "Tmk-Premium Servises" | Высокогерметичное резьбовое соединение |
| ATE471433T1 (de) * | 2008-02-29 | 2010-07-15 | Tenaris Connections Ag | Gewindeverbindungsstück mit verbesserten elastischen dichtungsringen |
| JP2009235874A (ja) * | 2008-03-28 | 2009-10-15 | Ｔｕｂｅ Ｔｅｃｈ 株式会社 | 掘削工具用継手 |
| AT506876B1 (de) * | 2008-06-03 | 2011-03-15 | Voestalpine Tubulars Gmbh & Co Kg | Rohrverbindung |
| MX2011004112A (es) * | 2008-10-20 | 2011-10-11 | Sumitomo Metal Ind | Junta roscada para tubos de acero. |
| EP2243920A1 (en) | 2009-04-22 | 2010-10-27 | Tenaris Connections Aktiengesellschaft | Threaded joint for tubes, pipes and the like |
| US8561995B2 (en) * | 2009-06-30 | 2013-10-22 | Vetco Gray Inc. | Metal-to-metal annulus seal arrangement |
| WO2011044691A1 (en) * | 2009-10-12 | 2011-04-21 | Kai Services Inc. | Pipe for the technical casing of a geological prospecting drilling rig |
| WO2011044690A1 (en) * | 2009-10-12 | 2011-04-21 | Kai Services Inc. | Hermetic threaded connecting device for drill or casing pipes of technical casing of geological prospecting drilling rig |
| WO2011044689A1 (en) * | 2009-10-12 | 2011-04-21 | Kai Services Inc. | Hermetic threaded connection of drill or casing pipes in technical casing for geological prospecting drilling well |
| EP2325435B2 (en) | 2009-11-24 | 2020-09-30 | Tenaris Connections B.V. | Threaded joint sealed to [ultra high] internal and external pressures |
| EP2372211B1 (en) | 2010-03-26 | 2015-06-03 | Tenaris Connections Ltd. | Thin-walled pipe joint and method to couple a first pipe to a second pipe |
| RU2663541C2 (ru) * | 2010-07-20 | 2018-08-07 | АйТиТи Мэньюфэкчуринг Энтерпрайсиз, ЭлЭлСИ | Суспензионный насос |
| US10215314B2 (en) * | 2010-08-23 | 2019-02-26 | Vallourec Oil And Gas France | Tubular threaded connection |
| US9163296B2 (en) | 2011-01-25 | 2015-10-20 | Tenaris Coiled Tubes, Llc | Coiled tube with varying mechanical properties for superior performance and methods to produce the same by a continuous heat treatment |
| JP5849749B2 (ja) * | 2011-02-28 | 2016-02-03 | Ｊｆｅスチール株式会社 | 管用ねじ継手 |
| CN102926674B (zh) * | 2011-08-11 | 2015-12-02 | 中国石油天然气集团公司 | 低压用气密封特殊螺纹接头 |
| CN102720440B (zh) * | 2012-06-16 | 2015-09-02 | 无锡西姆莱斯石油专用管制造有限公司 | 高密封偏梯形螺纹套管接头 |
| CN102829269B (zh) * | 2012-08-30 | 2014-06-04 | 中国石油天然气集团公司 | 地下储气库注气和采气用特殊螺纹接头 |
| US9869139B2 (en) | 2012-11-28 | 2018-01-16 | Ultra Premium Oilfield Services, Ltd. | Tubular connection with helically extending torque shoulder |
| US9677346B2 (en) | 2012-11-28 | 2017-06-13 | Ultra Premium Oilfield Services, Ltd. | Tubular connection with helically extending torque shoulder |
| CA2897451C (en) | 2013-01-11 | 2019-10-01 | Tenaris Connections Limited | Galling resistant drill pipe tool joint and corresponding drill pipe |
| US9803256B2 (en) | 2013-03-14 | 2017-10-31 | Tenaris Coiled Tubes, Llc | High performance material for coiled tubing applications and the method of producing the same |
| EP2789700A1 (en) | 2013-04-08 | 2014-10-15 | DALMINE S.p.A. | Heavy wall quenched and tempered seamless steel pipes and related method for manufacturing said steel pipes |
| EP2789701A1 (en) | 2013-04-08 | 2014-10-15 | DALMINE S.p.A. | High strength medium wall quenched and tempered seamless steel pipes and related method for manufacturing said steel pipes |
| US11105501B2 (en) | 2013-06-25 | 2021-08-31 | Tenaris Connections B.V. | High-chromium heat-resistant steel |
| RU2536730C1 (ru) * | 2013-07-16 | 2014-12-27 | Общетво с ограниченной ответственностью Торгово-промышленная группа "Росал" | Герметичное резьбовое соединение для обсадных труб |
| UA111782C2 (uk) * | 2014-10-23 | 2016-06-10 | Товариство З Обмеженою Відповідальністю "Інтерпайп Менеджмент" | Герметичне різьбове з'єднання металевих труб |
| WO2017141538A1 (ja) * | 2016-02-19 | 2017-08-24 | Ｊｆｅスチール株式会社 | 油井管用ねじ継手 |
| US11124852B2 (en) | 2016-08-12 | 2021-09-21 | Tenaris Coiled Tubes, Llc | Method and system for manufacturing coiled tubing |
| US10434554B2 (en) | 2017-01-17 | 2019-10-08 | Forum Us, Inc. | Method of manufacturing a coiled tubing string |
| MX2019007612A (es) * | 2017-01-18 | 2019-08-29 | Nippon Steel Corp | Conexion roscada. |
| RU184435U9 (ru) * | 2017-11-14 | 2018-11-22 | Акционерное общество "Первоуральский новотрубный завод" | Труба для скважин с высокогерметичным резьбовым соединением |
| RU182758U1 (ru) * | 2017-12-26 | 2018-08-30 | Общество С Ограниченной Ответственностью "Тмк-Премиум Сервис" | Резьбовое соединение насосно-компрессорных труб |
| CN110359858B (zh) * | 2018-03-26 | 2020-09-04 | 中国石油天然气集团有限公司 | 油井管接头的密封结构的设计与制造方法、密封方法 |
| CN109382496B (zh) * | 2018-12-28 | 2024-01-23 | 中信戴卡股份有限公司 | 冲头总成及包括该冲头总成的压铸机 |
| RU2726758C1 (ru) * | 2019-04-25 | 2020-07-15 | Общество с ограниченной ответственностью "ПАЛИМАР" | Утяжеленная бурильная труба с двухупорным замковым резьбовым соединением |
| CN110593774A (zh) * | 2019-10-30 | 2019-12-20 | 澳普洛钻探工具(无锡)有限公司 | 一种密封性钻杆外螺纹结构 |
| RU2728105C1 (ru) * | 2019-12-11 | 2020-07-28 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Тюменский индустриальный университет" | Резьбовое замковое коническое соединение бурильных труб и способ увеличения его несущей способности и ресурса работы |
| RU198398U1 (ru) * | 2019-12-25 | 2020-07-03 | Общество с ограниченной ответственностью Научно-производственное предприятие "БУРИНТЕХ" (ООО НПП "БУРИНТЕХ") | Резьбовое соединение для бурильных труб |
| CN111322017B (zh) * | 2020-03-31 | 2024-07-05 | 天津钢管制造有限公司 | 一种直连型套管接头的增强型密封结构 |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2111627A (en) * | 1935-07-15 | 1938-03-22 | Frank J Hinderliter | Rotary tool joint |
| DE1533619B2 (es) * | 1967-04-28 | 1970-06-11 | ||
| NL155335C (es) * | 1971-07-09 | 1900-01-01 | ||
| JPS5211765B2 (es) * | 1972-03-31 | 1977-04-02 | ||
| FR2322322A1 (fr) * | 1975-08-29 | 1977-03-25 | Nova Hut Klementa Gottwalda | Jonction hermetique filetee de tubes |
| GB1503395A (en) * | 1975-09-19 | 1978-03-08 | Attock Oilfield Equip | Pipe connector |
| DE2641767B2 (de) * | 1976-09-14 | 1979-05-31 | Mannesmann Ag, 4000 Duesseldorf | Gewindeverbindung für ölfeldrohre |
| JPS58157087U (ja) * | 1982-04-16 | 1983-10-20 | 日本鋼管株式会社 | 油井管用ネジ継手 |
| JPS58187684A (ja) * | 1982-04-27 | 1983-11-01 | 新日本製鐵株式会社 | 油井用鋼管継手 |
| US5423579A (en) * | 1983-01-17 | 1995-06-13 | Hydril Company | Tubular coupling with metal to metal seal |
| US4600225A (en) * | 1983-12-23 | 1986-07-15 | Interlock Technologies Corporation | Tubular connection having a parallel chevron thread |
| US4736967A (en) * | 1986-12-04 | 1988-04-12 | The Hydril Company | Tubular pin configuration to prevent galling while ensuring sealing |
| IT1199343B (it) * | 1986-12-23 | 1988-12-30 | Dalmine Spa | Giunto perfezionato per tubi di rivestimento di pozzi |
-
1988
- 1988-10-03 IT IT8848411A patent/IT1224745B/it active
-
1989
- 1989-09-13 NO NO893657A patent/NO301852B1/no not_active IP Right Cessation
- 1989-09-28 CN CN89107552A patent/CN1015198B/zh not_active Expired
- 1989-09-28 CA CA000614142A patent/CA1321808C/en not_active Expired - Lifetime
- 1989-09-29 AT AT89830425T patent/ATE124769T1/de not_active IP Right Cessation
- 1989-09-29 DE DE68923338T patent/DE68923338T2/de not_active Expired - Lifetime
- 1989-09-29 KR KR1019890014183A patent/KR950000608B1/ko not_active IP Right Cessation
- 1989-09-29 SK SK5547-89A patent/SK278341B6/sk unknown
- 1989-09-29 EP EP89830425A patent/EP0364413B1/en not_active Expired - Lifetime
- 1989-09-29 ES ES89830425T patent/ES2014954T3/es not_active Expired - Lifetime
- 1989-09-29 JP JP1252512A patent/JP3062820B2/ja not_active Expired - Lifetime
- 1989-09-29 DE DE198989830425T patent/DE364413T1/de active Pending
- 1989-09-29 US US07/414,925 patent/US4958862A/en not_active Expired - Lifetime
- 1989-09-29 CZ CS895547A patent/CZ278300B6/cs not_active IP Right Cessation
- 1989-10-02 MY MYPI89001341A patent/MY104226A/en unknown
- 1989-10-02 RU SU894742067A patent/RU2058505C1/ru active
- 1989-10-03 BR BR898905142A patent/BR8905142A/pt not_active IP Right Cessation
- 1989-10-03 DE DE8911779U patent/DE8911779U1/de not_active Expired - Lifetime
- 1989-10-03 AR AR89315080A patent/AR248447A1/es active
- 1989-10-03 DD DD89333271A patent/DD284955A5/de not_active IP Right Cessation
- 1989-10-03 OA OA59657A patent/OA09097A/xx unknown
- 1989-10-03 YU YU191689A patent/YU47908B/sh unknown
- 1989-10-03 RO RO141851A patent/RO113763B1/ro unknown
- 1989-10-03 MX MX017801A patent/MX174243B/es unknown
-
1994
- 1994-08-31 HR HRP-1916/89A patent/HRP940489B1/xx not_active IP Right Cessation
-
1995
- 1995-10-03 GR GR950402718T patent/GR3017605T3/el unknown
-
1998
- 1998-05-25 HK HK98104486A patent/HK1005320A1/xx not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CZ302148B6 (cs) * | 2000-06-20 | 2010-11-18 | Vallourec Mannesmann Oil & Gas France | Trubkový závitový spoj |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| IF00 | In force as of 2000-06-30 in czech republic | ||
| MK4A | Patent expired |
Effective date: 20090929 |